Trolley-wheel



L MOORE TRO LEY WHEEL.

4%? FILED mmz'e. 1919.

Patented June 28, 1921.

Q-nveufoz,

attoz "up 0 dZZQZfw/ e STATES {PATENT oF or'ro'uoorm; or FRANKFORT; INDIANA mom-WHEEL.

To all 20 h om 2725 may-concern I Beit known that I, O'r'ro MooRE,-a citizen-of the United States, residing at Frankfort, in the county of Clinton and State of Indiana, have invented a new and useful Trolle-yfW'heel, of -whichthe follo'wing is a V I wheel and is adapted to pass throughan specification.

This invention relates to improvements in trolley wheels, the object of the invention being. to provide what may be termed an automatic sliding and rotatingtrolley for use 7 on electric cars.

"A further object ofthe invention is to provide an improved trolle wheel which "is so formed that parts thereo may be replaced when worn out, without the necessity of re;- placing the entire wheel.

Afurther object of the invention is to generally improve the structure of the trolley wheel and. to prov-idea wheel which is comparatively simple .in -constr'uc't1on and economical in use.'

With the foregoing and other objects in view, which will appear as the description proceeds, the invention consists in the novel features of construction and combination of parts which will be more fully described hereinafter and particularly pointed out in the claims.

In the drawings accompanying and forming part of this specification,

Figure 1 is a side view, partly in section, showing my improved trolley wheel applied to the pole of an electric car, the pole being broken away;

Fig. 2 is a top plan View thereof;

Fig. 3 is a bottom plan view; and

Fig. 4 is a perspective view of a segment of the wheel.

The same characters of reference designate the same parts in the diflerent figures of the drawings.

Referring to the drawings, the wheel proper consists of a hub 2 having spokes 3 radiating therefrom, and a rim 4 having a flange 5 extending circumferentially thereof at each side of the wheel, thereby forming a depression of considerable depth around the rim of the wheel. The hub 2, spokes 3, rim4 and flanges 5 are preferably formed in one integral structure. Adapted to fit between the flanges 5 and to be seated on the periphery of the rim 4 are a plurality, sh wn herein as four in num e o seg en- Specificationof Letter-swarmeate t June'28,"1.92.1 Applibationfiled March: 26,1919- Serial Nd..2s5,2e4. 7

ta l: members or fellies 6, eachformed'witli a concave groove 7 in its periphery'to adapt it for contact with the wire conductor 22 Formed on the felly 6 at approximately the longitudinal centerthereof is a lug 8 which projects inwardly toward the-center of t'he opening formed in the rim 4,'sa'id lug being provided with a transverse openingl9 ada'pt ed' 'to receive a cotter pin for securing the segment in position on the 'rim'as shown in Fig. 1. y j

The wheel above described is 'mountedtfor rotatlon between the bifurcated ends 10' of a so-called harp, said harpbeing provided with a reduced por'tion'll at its opposite end adapted to be secured in the tubular openmg inthe endof a trolley pole 12. -The harp is also provided withfa loop'or eye;13 v

at its underside 'for attaehmentof the usual rope and at its upper side with a pointed lug or nose 14 adapted to project 'between'the flanges 5 of the wheel, the function of this nose being to prevent the span wires, that is to say, the cross wires which support the wire carrying the current, from catching on the wheel when the trolley jumps off the wire. The loop 13 and nose 14 are preferably cast integral with the harp.

In the present instance I have provided means for holding the wheel against rota- "tion when the car moves forward and for permitting the wheel to rotate when the car is backed up. For. this purpose the flanges 5 of the wheel are provided around their peripheries with a pluralityof ratchet teeth 15. At the underside of the harp is provided a pair of perforated earsior lugs 16, v

between which is pivoted a swinging pawl 17 that extends across the path of the wheel and is adapted to normally engage a pair of the ratchet teeth on the flanges 5,.as shown in Fig. 1. The pawl is provided with an arm 18 carrying at the free end thereof a weight 19, whereby the pawl is maintained normally in engagement with the ratchet teeth. The weighted end 19 of the arm is adapted to move between a pair of lugs 20 secured to or formed integral with the harp, whereb sidewisemotion of the arm is prevented. solid lug or shoulder 21 is formed on the harp between the perforated lugs 16 and back of the pivotal connection of the pawl with said lugs, whereby such pivotal connect tion is's'upported against the pressure of the pawl.

From the foregoing it will be seen that when the car is traveling-in one direction, as-

for instance toward the left of Fig. 1, the wheel will be held against rotation byreason of the engagement of the pawl with the ratchet teeth, but when .the car is backed or moved in the opposite direction the u w heel is free to rotate, whereby a newsegment or portion of a segment is automatr cally brought into engagement with the wire.

In case 'no necessity'should arise for backing up'the' car when itis deslr'ed to bring a new segmentinto contact with the wlre,

; the "wheel may be rotated by hand to a'ccom:

.. ture herein illustrated, it is to be understood that I donot'thereby' limit my invention to the precise features of construction shown,

as I amaware thatmany mechanical changes i may bemade therein without departingfrom the spirit andscope of the invention as set I forth in the appended claims,

I claimisz V 1. In a device of the class described, a harp; a:trolley'wheel journaled thereon and comprising separately'removable tread sectionsyand a pawl and ratchet connection be- Having thus described my'invention, what tween the harp and the wheel and operating to holduthe wheel against rotation in one direction, thereby to present the .tread s'ec-' tion's' one atatime fixed for sliding engagement with a trolley wire, the pawl and ratchet mechanism permittlnga'rotation of the wheel in an opposite direction, thereby to present difi'erent tread sections forfixed sliding engagement with the wire,

' In a device o he class descri ed, a

harp having depending lugs a wheel journaled on the harp and provided with a ratchet; and a pawlpivoted t0 the arm and cooperating with the ratchet, the pawl having a rearwardly" extended arm received slidably between the lugs and constituting a gravitymcans for holding'thepawl in operative relation to the ratchet wheel.

In testimony that I claim the'foreg'oing as my own, I have hereto aflixed my signature in the presence of'two witnesses; I c OTTO MOORE;

Witnesses: Z I HEiz AN H. Kris'rERsoN, V Jornv C. DARLING. I 

